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linux-stable/drivers/vdpa/vdpa_user
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Maxime Coquelin 7ca26efb09 vduse: Use proper spinlock for IRQ injection 
The IRQ injection work used spin_lock_irq() to protect the
scheduling of the softirq, but spin_lock_bh() should be
used.

With spin_lock_irq(), we noticed delay of more than 6
seconds between the time a NAPI polling work is scheduled
and the time it is executed.

Fixes: c8a6153b6c ("vduse: Introduce VDUSE - vDPA Device in Userspace")
Cc: xieyongji@bytedance.com

Suggested-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Message-Id: <20230705114505.63274-1-maxime.coquelin@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Xie Yongji <xieyongji@bytedance.com>
 		2023-08-10 15:24:28 -04:00
..
Makefile
…
iova_domain.c mm: replace vma->vm_flags direct modifications with modifier calls 2023-02-09 16:51:39 -08:00
iova_domain.h vduse: Remove include of rwlock.h 2023-02-06 15:31:05 +01:00
vduse_dev.c vduse: Use proper spinlock for IRQ injection 2023-08-10 15:24:28 -04:00